Candidates from the Tories, Liberal Democrats, and Green Party were not invited to the evening debate, although the Liberal Democrats did take part in the TUC’s debate earlier in the day. Ms Williams explained that the Liberal Democrats and Tories had been excluded because “we wanted to have candidates more representative of trade unions” but that not inviting the Greens had been “an oversight” due to the less prominent tradition of green politics in Wales. The BNP, UKIP and some minor parties also did not take part.

In opening statements, the three candidates discussed their records and their goals for the European Parliament. Mr Vaughan, leader of Neath Port Talbot County Borough Council, asserted the pro-organised labour credentials of the Labour Party, which has been under fire for several years from the left, and noted that Labour, which currently controls two of Wales’s four seats in the EU Parliament, has brought £1.5 billion to Wales, with a comparable amount to come in the future. Calling the BNP “Nazis” and comparing the British political situation to that in Germany in the 1930s, Vaughan called for the parties of the left to rally behind Labour in order to ensure that the BNP did not obtain any seats in Wales; but he expressed resignation to the likelihood that the BNP would earn a seat in North West England.

Ms Evans, meanwhile, who has been an MEP for ten years, announced her opposition to the pro-privatisation current in the EU and pledged that Plaid would support a new program of public investment and pro-organised labour revisions of EU directives, particularly the Posted Workers Directive.

Discussion of the ongoing UK parliamentary expenses scandal and its implications for MEPs, who draw salaries and expenses considerably higher than Westminster MPs do, dominated the early discussion. The Labour candidate expressed the position that the problems in accountability leading to the scandal had been fixed; his opponents noted that of the parties currently representing Britain in Brussels, only Labour has not yet disclosed their expenses (although Mr Vaughan states that the party will begin to do so soon) and Mr Griffiths furthermore declared that the scandal was part of a wider problem: the corruption of the political system by big business.

On the subject of a common European defence policy the three candidates supported widely differing views. The No2EU candidate stated plainly that he considers Europe not to be threatened, and said that a European defence force would be used for foreign adventures in Afghanistan, Africa, and elsewhere in the developing world while at the same time building up the armaments industry in Europe. Ms Evans, meanwhile, argued that the proper role of a common EU force would be as a “civil force” supporting conflict prevention and conflict resolution operations, and also called for the abolition of NATO. Mr Vaughan finished the second round of questioning arguing that a common European armed force should be an alternative to the “US-dominated” NATO, but also stated the importance of bilateral alliances in building up a common European defence force, citing the Franco-German Brigade of the Eurocorps as an example.

Debate ended on the contentious question of MEP salaries, with one member of the audience challenging the three candidates to pledge to accept a wage, if they won, equal to the average wage of their constituents. Ms Evans agreed that the set wage, currently £63,000 rising to £73,000 in 2010, was “too high”, but would not commit to a so-called “worker’s wage”, under heavy criticism from the audience. Mr Vaughan, following, called it “not fair” to ask MEPs to take such a pledge but asserted “I have never been motivated by money” and finished his part in the debate with a call to elect more left-wing socialist MEPs. Mr Griffiths, whose No2EU coalition has made a worker’s wage for MEPs part of their election manifesto, readily pledged to hold to a living wage, albeit not necessarily one equal to the average wage of his constituents, and described some of the difficulties associated with refusing an EU salary, noting that initially No2EU had proposed that its MEPs should draw no salary and claim no expenses from Europe but the coalition’s legal advisors had said that to do so would endanger the status of any of its members as MEPs.

Voting for the European Parliament elections in the United Kingdom takes place June 4.